Stainless steels for improved machinability

Transcription

1 Stainless steels for improved machinability Outokumpu range outokumpu.com/prodec

2 We believe in a world that lasts forever The magic of the range Outokumpu is a global leader in the advanced materials business, creating stainless steels that are efficient, long lasting, and recyclable. A strong customer focus, sustainability, and technical excellence are at the heart of everything we do. As an open and approachable company, our customers rely on our advice to help them select products that will deliver the best long-term performance for their needs. With over a century of innovation behind us and some of the best minds in the business, we continue to develop pioneering materials to meet the demands of tomorrow. Stainless steel grades optimized for improved machinability with longer tool life and enhanced quality. If you are looking to substantially lower your total cost for machined parts, range products deliver the higher productivity that makes it possible. They are designed specifically to give lower-cost machined parts with better final surface and dimensional tolerances. Faster machining Longer tool life Superior quality - tolerance and surface range products have the same corrosion resistance, yield strength, tensile strength, elongation, hardness, and toughness as conventionally produced stainless steel. Outokumpu has developed the range quality through years of extensive product development from steel making to bar finishing. You can depend on Outokumpu stainless steels to reliably and consistently meet the specifications that your application demands. The durability of stainless steel means that it is not only the best, but also the most economically sustainable choice for a wide range of applications. All of our products are made from an average of 85% recycled material and are fully recyclable at the end of their lifecycles. Together with our customers and partners, we are building a world that lasts forever. Stay up to date on our latest innovations, follow market trends, and get inspired by success stories subscribe to our magazines and newsletters outokumpu.com/newsletter Contact us at outokumpu.com/contacts to find out what grade is right for your next project. Cost saving example - vs. standard material Standard 316L Change +/- Cutting speed (sfm) % RPM % Total time/component (mins) % Total machining cost/ component $26.55 $ % Productivity increase % +54% Savings/component $14.50 A cost saving example for machining a part from 6 diameter peeled bar. Relative machinability performance - vs. standard 160% Core 304L/ L/4307 HSS; High speed tools CC; Cemented carbide tools Supra The graph shows the machinability of Supra, 304L/4307 and stainless steels in relation (%) to Core 304L/4307. A typical recommendation for Core 304L/4307 is estimated to 160 m/min for Cemented carbide (CC) set at 100% and 25 m/min for High Speed Steel (HSS) tools set at 100%. 2 3

3 Choosing the right product Products Outokumpu name Typical applications Product forms Product properties range Stainless steel grades optimized for improved machinability with longer tool life and enhanced quality ASTM CDB 2) Steel designations Performance Typical chemical composition, % by mass HRB 1) Grade 304L/4307 A version of Core 304L/4307 with improved machinability. Improves productivity with faster machining, longer tool life, better dimensional tolerances, superior machined surface quality, and improved yields compared to conventionally produced Core 304L/4307. Flanges and valves R p0.2 Outokumpu name EN Type UNS PRE A % MPa A % family C Cr Ni Mo N Others 304L/ L S /25/30 175/400/175 A L S /25/30 200/400/200 A / S /15/20 190/400/190 A S 17-4PH 3) S /10/12 600/600/520 PH Nb 3.5Cu R p 0.2 MPa 1) HRB = Hot rolled bar. 2) CDB = Cold drawn bar. Values are for diameter (d) 10mm & 10 < d 16mm & 16 < d 40mm. 3) Values for condition +P800. A version of Supra with improved machinability. Improves productivity with faster machining, longer tool life, better dimensional tolerances, superior machined surface quality, and improved yields compared to conventionally produced Supra. Flanges and valves Note: Yield strength (R P0.2 ) according to EN values for hot rolled bar. Elongation (A) according to EN values for cold rolled bar ( 10 mm/10 < d 16 mm/16 < d 40 mm). For more values by product, please see steelfinder.outokumpu.com 303/4305 For applications that use 303/ This product gives you faster machining, longer tool life, better tolerances, superior machined surface quality, and reduced scrap losses compared to conventionally produced 303/ Nuts, bolts, and screws Gears Shafts Bearings Machined parts for process equipment stainless steel types Martensitic stainless steels are characterized by high strength and high wear resistance. Corrosion resistance is limited and weldability decreases with increasing strength (i.e. increasing carbon content). Austenitic stainless steels have good to excellent corrosion resistance combined with very good weldability and formability. The austenitic structure has good creep resistance and good oxidation resistance that makes these steels useful at elevated temperatures. They can also be used in cryogenic applications and are, in the annealed condition, the only non-magnetic steel group. 17-4PH A martensitic, precipitation hardening stainless steel for applications that use Dura 17-4PH. It improves productivity with faster machining, longer tool life, better dimensional tolerances, superior machined surface quality, and improved yields when compared to conventionally produced Dura 17-4PH. Flanges Oil field valve equipment Chemical process equipment Paper mill equipment Aircraft parts B Product forms: P = Quarto plate, B = Bar 4 5

4 Customer view Todd Rhodes President, Plus Ten Stainless Our customers require very close tolerances, and I m always looking for ways to control our production process. They regularly achieve 25-30% faster machining speeds without any heat-affected zone around the perimeter when they use products. They also see their tools lasting longer sometimes up to twice as long. We recently had a project that called for 315 pieces of 304L plate with a water jet cut in the middle. The customer didn t want to pay the premium for our 304L. Because of price, we sold them 304 pieces of standard grade 304L. To avoid having to order a larger We regularly achieve 25-30% faster machining speeds. We also see our tools lasting longer, sometimes as much as twice as long. The pieces machined like butter. volume of the standard grade, I made up the difference with 11 pieces of 304L that we had in stock. We informed the customer that the 11 pieces were so they could track the results. When I called them later to see how their project turned out, they reported that the 11 pieces machined like butter while the standard grade pieces were stressing the equipment so much so that they were still struggling to get a good part machined. I think they realized that the premium cost for represents real value once machining and tool life efficiencies are factored in. I m a big fan of and keep telling my customers that even though these products are enhanced to increase the life of their tool inserts, they still conform to all ASTM specifications and standards and can be certified as the standard grade. The name comes from PRODuction EConomy and refers to the fact that these products are designed specifically for improved machinability. 6 7

5 Working towards forever. We work with our customers and partners to create long lasting solutions for the tools of modern life and the world s most critical problems: clean energy, clean water, and efficient infrastructure. Because we believe in a world that lasts forever. 1556EN-GB:1. May Erweko Finland. Information given in this brochure may be subject to alterations without notice. Care has been taken to ensure that the contents of this publication are accurate but Outokumpu and its affiliated companies do not accept responsibility for errors or for information which is found to be misleading. Suggestions for or descriptions of the end use or application of products or methods of working are for information only and Outokumpu and its affiliated companies accept no liability in respect thereof. Before using products supplied or manufactured by the company the customer should satisfy himself of their suitability. MODA, CORE, SUPRA, FORTA, ULTRA, DURA, THERMA, DECO, 316PLUS and 153 MA are trademarks of Outokumpu Oyj. PRODEC, EDX, FDX, FDX 25, FDX 27, LDX, 253 MA, 254 SMO, 654 SMO, LDX 2101, LDX 2404 are registered trademarks of Outokumpu Oyj. outokumpu.com